<% pane_list.each_with_index do |pane, i| %>
<% pane_name = (pane.is_a?(Hash) ? pane[:name] : pane) %>
<div id="<%= pane_name %>"
<% pane_list.each_with_index do |pane, i| %>
<% pane_name = (pane.is_a?(Hash) ? pane[:name] : pane) %>
<div id="<%= pane_name %>"